So if the OP stat were true, everyone watching the Super Bowl would have to drink an average of about 3 gallons of beer. (Unless we're supposed to be counting all beer consumption that goes on in the U.S. during the game, even among those people who aren't watching it.)

I haven't come close to drinking three gallons of beer in my entire lifetime.

Among the four heartbroken adults in our Seattle house watching "the big game," zero alcohol of any type was consumed that day. And we did have some in the house (not newly-purchased), we just don't do much drinking.

I like beer, I'm OK with football, and I don't know of anyone who consumed that much beer in one day during the game, including pre+post.

That being said, every Superbowl party I've been to has had leftover food + beer (and large amounts of it usually), but I can't really see 1-gal/person.

OY

The only thing I can think is that he is looking at the global amounts of beer being drank but comparing that amount to the population of the US. For example, several million Canadians packed sports bars and living rooms around the country to watch. Given the population of the world that watched, I'd still guess that 325 gallons is way too much, though.

$1.01 billion: Amount of money spent on beer in the two weeks surrounding last year's Super Bowl at grocery and convenience stores, according to Nielson. That number would be even larger if it included restaurants, bars, hotels and the stadium itself.

If beer cost around $10/gallon retail then that represents around 100 million gallons. That's still maybe 1 gallon per adult but at least in that stat the beer isn't necessarily all consumed on Super Bowl Sunday. Always better to buy too much beer for a party than too little.